Use memset to clear SRP_CTX instead of NULL and zero assignments

[openssl.git] / ssl / tls_srp.c

diff --git a/ssl/tls_srp.c b/ssl/tls_srp.c
index 06e5e5b669263fb9865f02ae7a4c3d119f8abd73..bfdbdf58744d5cd9236262058ff7e7e5656e6dbf 100644 (file)
--- a/ssl/tls_srp.c
+++ b/ssl/tls_srp.c
@@ -20,6 +20,7 @@ int SSL_CTX_SRP_CTX_free(struct ssl_ctx_st *ctx)
     if (ctx == NULL)
         return 0;
     OPENSSL_free(ctx->srp_ctx.login);
+    OPENSSL_free(ctx->srp_ctx.info);
     BN_free(ctx->srp_ctx.N);
     BN_free(ctx->srp_ctx.g);
     BN_free(ctx->srp_ctx.s);
@@ -28,22 +29,8 @@ int SSL_CTX_SRP_CTX_free(struct ssl_ctx_st *ctx)
     BN_free(ctx->srp_ctx.a);
     BN_free(ctx->srp_ctx.b);
     BN_free(ctx->srp_ctx.v);
-    ctx->srp_ctx.TLS_ext_srp_username_callback = NULL;
-    ctx->srp_ctx.SRP_cb_arg = NULL;
-    ctx->srp_ctx.SRP_verify_param_callback = NULL;
-    ctx->srp_ctx.SRP_give_srp_client_pwd_callback = NULL;
-    ctx->srp_ctx.N = NULL;
-    ctx->srp_ctx.g = NULL;
-    ctx->srp_ctx.s = NULL;
-    ctx->srp_ctx.B = NULL;
-    ctx->srp_ctx.A = NULL;
-    ctx->srp_ctx.a = NULL;
-    ctx->srp_ctx.b = NULL;
-    ctx->srp_ctx.v = NULL;
-    ctx->srp_ctx.login = NULL;
-    ctx->srp_ctx.info = NULL;
+    memset(&ctx->srp_ctx, 0, sizeof(ctx->srp_ctx));
     ctx->srp_ctx.strength = SRP_MINIMAL_N;
-    ctx->srp_ctx.srp_Mask = 0;
     return (1);
 }
 
@@ -52,6 +39,7 @@ int SSL_SRP_CTX_free(struct ssl_st *s)
     if (s == NULL)
         return 0;
     OPENSSL_free(s->srp_ctx.login);
+    OPENSSL_free(s->srp_ctx.info);
     BN_free(s->srp_ctx.N);
     BN_free(s->srp_ctx.g);
     BN_free(s->srp_ctx.s);
@@ -60,22 +48,8 @@ int SSL_SRP_CTX_free(struct ssl_st *s)
     BN_free(s->srp_ctx.a);
     BN_free(s->srp_ctx.b);
     BN_free(s->srp_ctx.v);
-    s->srp_ctx.TLS_ext_srp_username_callback = NULL;
-    s->srp_ctx.SRP_cb_arg = NULL;
-    s->srp_ctx.SRP_verify_param_callback = NULL;
-    s->srp_ctx.SRP_give_srp_client_pwd_callback = NULL;
-    s->srp_ctx.N = NULL;
-    s->srp_ctx.g = NULL;
-    s->srp_ctx.s = NULL;
-    s->srp_ctx.B = NULL;
-    s->srp_ctx.A = NULL;
-    s->srp_ctx.a = NULL;
-    s->srp_ctx.b = NULL;
-    s->srp_ctx.v = NULL;
-    s->srp_ctx.login = NULL;
-    s->srp_ctx.info = NULL;
+    memset(&s->srp_ctx, 0, sizeof(s->srp_ctx));
     s->srp_ctx.strength = SRP_MINIMAL_N;
-    s->srp_ctx.srp_Mask = 0;
     return (1);
 }
 
@@ -85,6 +59,9 @@ int SSL_SRP_CTX_init(struct ssl_st *s)
 
     if ((s == NULL) || ((ctx = s->ctx) == NULL))
         return 0;
+
+    memset(&s->srp_ctx, 0, sizeof(s->srp_ctx));
+
     s->srp_ctx.SRP_cb_arg = ctx->srp_ctx.SRP_cb_arg;
     /* set client Hello login callback */
     s->srp_ctx.TLS_ext_srp_username_callback =
@@ -96,16 +73,6 @@ int SSL_SRP_CTX_init(struct ssl_st *s)
     s->srp_ctx.SRP_give_srp_client_pwd_callback =
         ctx->srp_ctx.SRP_give_srp_client_pwd_callback;
 
-    s->srp_ctx.N = NULL;
-    s->srp_ctx.g = NULL;
-    s->srp_ctx.s = NULL;
-    s->srp_ctx.B = NULL;
-    s->srp_ctx.A = NULL;
-    s->srp_ctx.a = NULL;
-    s->srp_ctx.b = NULL;
-    s->srp_ctx.v = NULL;
-    s->srp_ctx.login = NULL;
-    s->srp_ctx.info = ctx->srp_ctx.info;
     s->srp_ctx.strength = ctx->srp_ctx.strength;
 
     if (((ctx->srp_ctx.N != NULL) &&
@@ -132,11 +99,17 @@ int SSL_SRP_CTX_init(struct ssl_st *s)
         SSLerr(SSL_F_SSL_SRP_CTX_INIT, ERR_R_INTERNAL_ERROR);
         goto err;
     }
+    if ((ctx->srp_ctx.info != NULL) &&
+        ((s->srp_ctx.info = BUF_strdup(ctx->srp_ctx.info)) == NULL)) {
+        SSLerr(SSL_F_SSL_SRP_CTX_INIT, ERR_R_INTERNAL_ERROR);
+        goto err;
+    }
     s->srp_ctx.srp_Mask = ctx->srp_ctx.srp_Mask;
 
     return (1);
  err:
     OPENSSL_free(s->srp_ctx.login);
+    OPENSSL_free(s->srp_ctx.info);
     BN_free(s->srp_ctx.N);
     BN_free(s->srp_ctx.g);
     BN_free(s->srp_ctx.s);
@@ -145,6 +118,7 @@ int SSL_SRP_CTX_init(struct ssl_st *s)
     BN_free(s->srp_ctx.a);
     BN_free(s->srp_ctx.b);
     BN_free(s->srp_ctx.v);
+    memset(&s->srp_ctx, 0, sizeof(s->srp_ctx));
     return (0);
 }
 
@@ -153,25 +127,7 @@ int SSL_CTX_SRP_CTX_init(struct ssl_ctx_st *ctx)
     if (ctx == NULL)
         return 0;
 
-    ctx->srp_ctx.SRP_cb_arg = NULL;
-    /* set client Hello login callback */
-    ctx->srp_ctx.TLS_ext_srp_username_callback = NULL;
-    /* set SRP N/g param callback for verification */
-    ctx->srp_ctx.SRP_verify_param_callback = NULL;
-    /* set SRP client passwd callback */
-    ctx->srp_ctx.SRP_give_srp_client_pwd_callback = NULL;
-
-    ctx->srp_ctx.N = NULL;
-    ctx->srp_ctx.g = NULL;
-    ctx->srp_ctx.s = NULL;
-    ctx->srp_ctx.B = NULL;
-    ctx->srp_ctx.A = NULL;
-    ctx->srp_ctx.a = NULL;
-    ctx->srp_ctx.b = NULL;
-    ctx->srp_ctx.v = NULL;
-    ctx->srp_ctx.login = NULL;
-    ctx->srp_ctx.srp_Mask = 0;
-    ctx->srp_ctx.info = NULL;
+    memset(&ctx->srp_ctx, 0, sizeof(ctx->srp_ctx));
     ctx->srp_ctx.strength = SRP_MINIMAL_N;
 
     return (1);
@@ -272,7 +228,12 @@ int SSL_set_srp_server_param(SSL *s, const BIGNUM *N, const BIGNUM *g,
         } else
             s->srp_ctx.v = BN_dup(v);
     }
-    s->srp_ctx.info = info;
+    if (info != NULL) {
+        if (s->srp_ctx.info)
+            OPENSSL_free(s->srp_ctx.info);
+        if ((s->srp_ctx.info = BUF_strdup(info)) == NULL)
+            return -1;
+    }
 
     if (!(s->srp_ctx.N) ||
         !(s->srp_ctx.g) || !(s->srp_ctx.s) || !(s->srp_ctx.v))